The Influence of the Extent of the Heated Skin Area on Transcutaneous Oxygen Pressure
Transcutaneous (tc) blood gas measurement  can be considered the standard method in the field of neonatology worldwide [2, 3]. In the beginning stages, when commercial tcPO2 monitors first came on to the market, various studies were carried out which were devoted, among other things, to establishing the ideal electrode temperature. All of these investigations confirmed that the higher the electrode temperature, the smaller the absolute difference between tcPO2 and arterially measured PO2 (PaO2), i. e., the closer the correlation between PaO2 and tcPO2 . The problem, however, is that higher temperatures raise the risk of damaging the skin, from severe redness up to first degree burns, with the duration of continuous electrode application playing an important role.
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